:root {
  --app-font-scale: 1;
  --app-line-height: 1.5;
  --app-density: 1;
  --control-height: 40px;
  --control-radius: 10px;
  --control-shadow: 0 8px 16px rgba(15, 23, 42, 0.28);
  --control-shadow-hover: 0 12px 22px rgba(15, 23, 42, 0.34);
  --settings-overlay-bg: rgba(2, 6, 23, 0.6);
  --settings-shell-shadow: 0 20px 50px rgba(2, 6, 23, 0.45);
  --settings-group-bg: var(--panel-strong, rgba(15, 23, 42, 0.7));
  --settings-head-bg: transparent;
  --settings-toggle-bg: var(--input-bg);
  --settings-input-bg: var(--input-bg);
  --settings-input-border: var(--panel-border);
}

:root[data-theme="light"] {
  --control-shadow: 0 7px 16px rgba(15, 23, 42, 0.12);
  --control-shadow-hover: 0 10px 20px rgba(15, 23, 42, 0.18);
  --settings-overlay-bg: rgba(15, 23, 42, 0.28);
  --settings-shell-shadow: 0 18px 36px rgba(15, 23, 42, 0.18);
  --settings-group-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(248, 250, 252, 0.97));
  --settings-head-bg: linear-gradient(180deg, rgba(248, 250, 252, 0.82), rgba(248, 250, 252, 0.5));
  --settings-toggle-bg: rgba(255, 255, 255, 0.98);
  --settings-input-bg: rgba(255, 255, 255, 0.98);
  --settings-input-border: rgba(148, 163, 184, 0.42);
}

body {
  font-size: calc(16px * var(--app-font-scale));
  line-height: var(--app-line-height);
}

body.high-contrast {
  --panel-border: rgba(226, 232, 240, 0.7);
  --muted: #d1d5db;
  --accent: #84cc16;
  --accent-2: #38bdf8;
}

body[data-density="compact"] .topbar {
  padding: 10px 18px;
}

body[data-density="compact"] .btn {
  padding: 6px 10px;
  min-height: 36px;
}

body[data-density="compact"] .composer,
body[data-density="compact"] .panel,
body[data-density="compact"] .mode-panel {
  padding: 12px;
}

body[data-density="compact"] .nav-link {
  min-height: 36px;
}

body.reduce-motion *,
body.reduce-motion *::before,
body.reduce-motion *::after {
  animation-duration: 0ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0ms !important;
  scroll-behavior: auto !important;
}

.top-nav {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 380px;
  flex-wrap: wrap;
  min-width: 0;
}

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
  flex: 1 1 auto;
  min-width: 0;
  flex-wrap: wrap;
}

.utility-panel-toggle {
  flex: 0 0 auto;
  min-width: 136px;
}

.utility-panel-overlay {
  position: fixed;
  inset: 0;
  z-index: 24;
  background: rgba(2, 6, 23, 0.52);
  backdrop-filter: blur(4px);
}

.controls-inline {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  gap: 10px;
  justify-content: flex-end;
  flex-wrap: wrap;
  min-width: 0;
}

.action-pair,
.header-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-left: auto;
  flex-wrap: wrap;
  min-width: 0;
  max-width: 100%;
}

.action-pair > .btn,
.header-controls > .btn {
  flex: 0 1 auto;
}

.action-pair > .auth-user-badge,
.header-controls > .auth-user-badge {
  flex: 1 1 220px;
}

.topbar-field {
  min-width: 170px;
  flex: 1 1 210px;
  max-width: 260px;
}

.topbar-field span {
  display: none;
}

.topbar-field select {
  width: 100%;
}

.controls-inline .toggle {
  white-space: nowrap;
}

.utility-panel {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 25;
  width: min(390px, calc(100vw - 20px));
  height: 100vh;
  padding: 18px 16px 20px;
  border-left: 1px solid var(--panel-border);
  background:
    linear-gradient(170deg, rgba(15, 23, 42, 0.97), rgba(2, 6, 23, 0.94));
  box-shadow: -24px 0 44px rgba(2, 6, 23, 0.52);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  transform: translateX(104%);
  transition: transform 220ms ease;
}

:root[data-theme="light"] .utility-panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 245, 249, 0.96));
  box-shadow: -20px 0 40px rgba(15, 23, 42, 0.2);
}

body.utility-panel-open {
  overflow: hidden;
}

body.utility-panel-open .utility-panel {
  transform: translateX(0);
}

.utility-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.utility-panel-eyebrow {
  margin: 0 0 4px;
  font-family: var(--font-ui, sans-serif);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.utility-panel-head h2 {
  margin: 0;
  font-family: var(--font-ui, sans-serif);
  font-size: 20px;
}

.utility-panel-close {
  min-width: 0;
}

.utility-panel-section {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--settings-group-bg);
  padding: 12px;
  display: grid;
  gap: 9px;
}

.utility-panel-section h3 {
  margin: 0;
  font-family: var(--font-ui, sans-serif);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.utility-panel-section .auth-user-badge {
  width: 100%;
  max-width: none;
  line-height: 1.2;
}

.utility-panel-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.utility-panel-actions .btn {
  width: 100%;
  min-width: 0;
}

.utility-panel .topbar-field {
  min-width: 0;
  max-width: none;
  width: 100%;
  flex: 1 1 auto;
}

.utility-panel .topbar-field span {
  display: block;
}

.btn,
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-height);
  padding: 8px 14px;
  border-radius: var(--control-radius);
  border: 1px solid var(--panel-border);
  box-shadow: var(--control-shadow);
  font-family: var(--font-ui, sans-serif);
  font-size: 13px;
  font-weight: 600;
  transition: transform 0.16s ease, box-shadow 0.2s ease, color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover,
.nav-link:hover {
  transform: translateY(-1px);
  box-shadow: var(--control-shadow-hover);
}

.btn:disabled:hover {
  transform: none;
  box-shadow: var(--control-shadow);
}

.btn .icon {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.topbar .btn,
.topbar .nav-link {
  min-width: 0;
}

.nav-link {
  background: var(--input-bg);
  color: var(--muted);
}

.nav-link.active {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #042012;
  border-color: transparent;
}

.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 140;
  background: rgba(2, 6, 23, 0.78);
  backdrop-filter: none;
}

.settings-modal {
  position: fixed;
  inset: 0;
  z-index: 141;
  padding: 26px 20px;
  overflow-y: auto;
}

.settings-shell {
  width: min(1040px, 100%);
  margin: 0 auto;
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  background: var(--panel, rgba(17, 24, 39, 0.95));
  box-shadow: var(--settings-shell-shadow);
  overflow: hidden;
}

.settings-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--settings-head-bg);
}

.settings-eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-family: var(--font-ui, sans-serif);
}

.settings-head h2 {
  margin: 0;
  font-size: 22px;
}

.settings-mobile-tabs {
  display: none;
  gap: 8px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--panel);
  overflow-x: auto;
  scrollbar-width: thin;
}

.settings-mobile-tab {
  min-height: 34px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: var(--settings-toggle-bg);
  color: var(--muted);
  font-family: var(--font-ui, sans-serif);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  white-space: nowrap;
}

.settings-mobile-tab.is-active {
  border-color: rgba(34, 197, 94, 0.5);
  background: rgba(34, 197, 94, 0.18);
  color: var(--text);
}

.settings-form {
  display: grid;
  gap: 14px;
  padding: 16px 20px;
}

.settings-group {
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  background: var(--settings-group-bg);
  padding: 14px;
}

.settings-group.is-mobile-hidden {
  display: none !important;
}

.settings-group h3 {
  margin: 0 0 10px;
  font-family: var(--font-ui, sans-serif);
  font-size: 15px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 10px;
}

.settings-grid .field {
  min-width: 0;
}

.settings-grid .field input,
.settings-grid .field select {
  width: 100%;
  background: var(--settings-input-bg);
  border: 1px solid var(--settings-input-border);
  color: var(--text);
}

.settings-switches {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 8px;
}

.settings-switches .toggle {
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 8px 10px;
  background: var(--settings-toggle-bg);
  color: var(--text);
  font-size: 13px;
}

.settings-switches .toggle input {
  width: 16px;
  height: 16px;
}

.settings-perkins-unavailable {
  margin: 10px 0 0;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px dashed var(--panel-border);
  background: var(--settings-toggle-bg);
}

.settings-quick-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 8px;
}

.settings-quick-action {
  width: 100%;
  justify-content: flex-start;
}

.settings-access-group {
  display: grid;
  gap: 10px;
}

.settings-access-role {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  font-family: var(--font-ui, sans-serif);
}

.settings-access-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.settings-access-list li {
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

.settings-session-group {
  display: grid;
  gap: 10px;
}

.settings-session-group.is-busy {
  opacity: 0.86;
}

.settings-session-hint {
  margin: -4px 0 0;
}

.settings-session-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-session-status {
  margin: 0;
  min-height: 20px;
  color: var(--accent);
  font-family: var(--font-ui, sans-serif);
  font-size: 13px;
}

.settings-session-status.error {
  color: #f87171;
}

.settings-session-search-field {
  margin: 2px 0 0;
}

.settings-session-search-input {
  min-height: 40px;
}

.settings-session-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 248px;
  overflow-y: auto;
}

.settings-session-item {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--settings-toggle-bg);
  padding: 9px 10px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: start;
}

.settings-session-item-title {
  margin: 0;
  font-family: var(--font-ui, sans-serif);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.settings-session-item-meta {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.settings-session-item-preview {
  margin: 6px 0 0;
  color: var(--text);
  font-size: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.settings-session-item-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.settings-session-item-actions .btn {
  min-height: 32px;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 12px;
}

.settings-session-empty {
  margin: 0;
  border: 1px dashed var(--panel-border);
  border-radius: 12px;
  padding: 10px;
  color: var(--muted);
  font-size: 13px;
}

.settings-mfa-group {
  display: grid;
  gap: 10px;
}

.settings-mfa-status {
  margin: 0;
  min-height: 20px;
  color: var(--accent);
  font-family: var(--font-ui, sans-serif);
  font-size: 13px;
}

.settings-mfa-status.error {
  color: #f87171;
}

.settings-mfa-grid {
  grid-template-columns: repeat(2, minmax(180px, 1fr));
}

.settings-mfa-secret {
  font-family: var(--font-mono, ui-monospace, "Cascadia Mono", "SF Mono", Consolas, monospace);
  letter-spacing: 0.03em;
}

.settings-mfa-uri {
  margin: 0;
  border: 1px dashed var(--panel-border);
  border-radius: 10px;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 12px;
  word-break: break-all;
}

.settings-mfa-toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.settings-mfa-toolbar .btn {
  width: 100%;
}

.settings-mfa-security-summary-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.settings-mfa-security-summary {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.settings-mfa-security-window {
  display: grid;
  gap: 10px;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px;
  background: color-mix(in srgb, var(--panel) 88%, var(--accent) 12%);
}

.settings-mfa-security-grid {
  grid-template-columns: repeat(2, minmax(180px, 1fr));
}

.settings-mfa-security-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-passkey-card {
  display: grid;
  gap: 8px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 12px;
  background: color-mix(in srgb, var(--panel) 92%, var(--accent) 8%);
}

.settings-passkey-card h4 {
  margin: 0;
  font-size: 14px;
}

.settings-passkey-status {
  margin: 0;
  min-height: 20px;
  color: var(--accent);
  font-size: 12px;
}

.settings-passkey-status.error {
  color: #f87171;
}

.settings-passkey-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-passkey-credentials {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.settings-passkey-credential-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 85%, var(--accent) 15%);
  font-size: 12px;
}

.settings-passkey-credential-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.settings-passkey-credential-delete {
  flex-shrink: 0;
  font-size: 11px;
  padding: 2px 8px;
  color: #f87171;
}

.settings-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 20px 18px;
  border-top: 1px solid var(--panel-border);
}

.settings-message {
  margin: 0;
  min-height: 20px;
  color: var(--accent);
  font-family: var(--font-ui, sans-serif);
  font-size: 13px;
}

.settings-message.error {
  color: #f87171;
}

.settings-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.hidden {
  display: none !important;
}

@media (max-width: 1280px) {
  .topbar-actions {
    width: 100%;
    justify-content: space-between;
    align-items: center;
  }

  .top-nav {
    justify-content: flex-start;
    flex: 1 1 320px;
  }

  .utility-panel {
    width: min(370px, calc(100vw - 12px));
  }

  .topbar .btn,
  .topbar .nav-link {
    min-width: 0;
    padding-left: 12px;
    padding-right: 12px;
  }
}

@media (max-width: 980px) {
  .topbar-actions {
    width: 100%;
    justify-content: flex-start;
    align-items: stretch;
    gap: 8px;
  }

  .top-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .utility-panel-toggle {
    width: 100%;
    margin-left: 0;
  }

  .utility-panel {
    width: min(360px, calc(100vw - 10px));
  }

  .utility-panel-actions {
    grid-template-columns: 1fr;
  }

  .settings-grid {
    grid-template-columns: repeat(2, minmax(150px, 1fr));
  }
}

@media (max-width: 840px) {
  .settings-mobile-tabs {
    display: flex;
  }

  .settings-mfa-toolbar {
    grid-template-columns: 1fr;
  }

  .settings-mfa-security-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) and (pointer: coarse) {
  .settings-modal [data-admin-only="true"] {
    display: none !important;
  }
}

@media (max-width: 720px) {
  .utility-panel {
    width: 100%;
    max-width: none;
  }

  .settings-modal {
    padding: 0;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .settings-quick-actions {
    grid-template-columns: 1fr;
  }

  .settings-grid .field input,
  .settings-grid .field select {
    min-height: 42px;
    font-size: 16px;
  }

  .settings-mfa-grid {
    grid-template-columns: 1fr;
  }

  .settings-mfa-security-summary-wrap {
    flex-direction: column;
    align-items: stretch;
  }

  .settings-switches .toggle {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .settings-head,
  .settings-mobile-tabs,
  .settings-form,
  .settings-foot {
    padding-left: 14px;
    padding-right: 14px;
  }

  .settings-shell {
    width: 100%;
    min-height: 100dvh;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .settings-head {
    position: sticky;
    top: 0;
    z-index: 3;
    background: var(--panel);
  }

  .settings-mobile-tabs {
    position: sticky;
    top: 78px;
    z-index: 3;
  }

  .settings-foot {
    position: sticky;
    bottom: 0;
    z-index: 3;
    flex-direction: column;
    align-items: flex-start;
    background: var(--panel);
    border-top: 1px solid var(--panel-border);
  }

  .settings-actions {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
  }

  .settings-actions .btn {
    width: 100%;
    min-height: 42px;
  }
}